| -- C3A2001.A |
| -- |
| -- Grant of Unlimited Rights |
| -- |
| -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, |
| -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained |
| -- unlimited rights in the software and documentation contained herein. |
| -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making |
| -- this public release, the Government intends to confer upon all |
| -- recipients unlimited rights equal to those held by the Government. |
| -- These rights include rights to use, duplicate, release or disclose the |
| -- released technical data and computer software in whole or in part, in |
| -- any manner and for any purpose whatsoever, and to have or permit others |
| -- to do so. |
| -- |
| -- DISCLAIMER |
| -- |
| -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR |
| -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED |
| -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE |
| -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE |
| -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A |
| -- PARTICULAR PURPOSE OF SAID MATERIAL. |
| --* |
| -- |
| -- OBJECTIVE: |
| -- Check that an access type may be defined to designate the |
| -- class-wide type of an abstract type. Check that the access type |
| -- may then be used subsequently with types derived from the abstract |
| -- type. Check that dispatching operations dispatch correctly, when |
| -- called using values designated by objects of the access type. |
| -- |
| -- TEST DESCRIPTION: |
| -- This test declares an abstract type Breaker in a package, and |
| -- then derives from it. The type Basic_Breaker defines the least |
| -- possible in order to not be abstract. The type Ground_Fault is |
| -- defined to inherit as much as possible, whereas type Special_Breaker |
| -- overrides everything it can. The type Special_Breaker also includes |
| -- an embedded Basic_Breaker object. The main program then utilizes |
| -- each of the three types of breaker, and to ascertain that the |
| -- overloading and tagging resolution are correct, each "Create" |
| -- procedure is called with a unique value. The diagram below |
| -- illustrates the relationships. |
| -- |
| -- Abstract type: Breaker(1) |
| -- | |
| -- Basic_Breaker(2) |
| -- / \ |
| -- Ground_Fault(3) Special_Breaker(4) |
| -- |
| -- Test structure is a polymorphic linked list, modeling a circuit |
| -- as a list of components. The type component is the access type |
| -- defined to designate Breaker'Class values. The test then creates |
| -- some values, and traverses the list to determine correct operation. |
| -- This test is instrumented with a the trace facility found in |
| -- foundation F392C00 to simplify the verification process. |
| -- |
| -- |
| -- CHANGE HISTORY: |
| -- 06 Dec 94 SAIC ACVC 2.0 |
| -- 10 Nov 95 SAIC Checked compilation for ACVC 2.0.1 |
| -- 23 APR 96 SAIC Added pragma Elaborate_All |
| -- 26 NOV 96 SAIC Elaborate_Body changed to Elaborate_All |
| -- |
| --! |
| |
| with Report; |
| with TCTouch; |
| package C3A2001_1 is |
| |
| type Breaker is abstract tagged private; |
| type Status is ( Power_Off, Power_On, Tripped, Failed ); |
| |
| procedure Flip ( The_Breaker : in out Breaker ) is abstract; |
| procedure Trip ( The_Breaker : in out Breaker ) is abstract; |
| procedure Reset( The_Breaker : in out Breaker ) is abstract; |
| procedure Fail ( The_Breaker : in out Breaker ); |
| |
| procedure Set ( The_Breaker : in out Breaker'Class; To_State : Status ); |
| |
| function Status_Of( The_Breaker : Breaker ) return Status; |
| |
| private |
| type Breaker is abstract tagged record |
| State : Status := Power_Off; |
| end record; |
| end C3A2001_1; |
| |
| ---------------------------------------------------------------------------- |
| |
| with TCTouch; |
| package body C3A2001_1 is |
| procedure Fail( The_Breaker : in out Breaker ) is |
| begin |
| TCTouch.Touch( 'a' ); --------------------------------------------- a |
| The_Breaker.State := Failed; |
| end Fail; |
| |
| procedure Set( The_Breaker : in out Breaker'Class; To_State : Status ) is |
| begin |
| The_Breaker.State := To_State; |
| end Set; |
| |
| function Status_Of( The_Breaker : Breaker ) return Status is |
| begin |
| TCTouch.Touch( 'b' ); --------------------------------------------- b |
| return The_Breaker.State; |
| end Status_Of; |
| end C3A2001_1; |
| |
| ---------------------------------------------------------------------------- |
| |
| with C3A2001_1; |
| package C3A2001_2 is |
| |
| type Basic_Breaker is new C3A2001_1.Breaker with private; |
| |
| type Voltages is ( V12, V110, V220, V440 ); |
| type Amps is ( A1, A5, A10, A25, A100 ); |
| |
| function Construct( Voltage : Voltages; Amperage : Amps ) |
| return Basic_Breaker; |
| |
| procedure Flip ( The_Breaker : in out Basic_Breaker ); |
| procedure Trip ( The_Breaker : in out Basic_Breaker ); |
| procedure Reset( The_Breaker : in out Basic_Breaker ); |
| private |
| type Basic_Breaker is new C3A2001_1.Breaker with record |
| Voltage_Level : Voltages := V110; |
| Amperage : Amps; |
| end record; |
| end C3A2001_2; |
| |
| ---------------------------------------------------------------------------- |
| |
| with TCTouch; |
| package body C3A2001_2 is |
| function Construct( Voltage : Voltages; Amperage : Amps ) |
| return Basic_Breaker is |
| It : Basic_Breaker; |
| begin |
| TCTouch.Touch( 'c' ); --------------------------------------------- c |
| It.Amperage := Amperage; |
| It.Voltage_Level := Voltage; |
| C3A2001_1.Set( It, C3A2001_1.Power_Off ); |
| return It; |
| end Construct; |
| |
| procedure Flip ( The_Breaker : in out Basic_Breaker ) is |
| begin |
| TCTouch.Touch( 'd' ); --------------------------------------------- d |
| case Status_Of( The_Breaker ) is |
| when C3A2001_1.Power_Off => |
| C3A2001_1.Set( The_Breaker, C3A2001_1.Power_On ); |
| when C3A2001_1.Power_On => |
| C3A2001_1.Set( The_Breaker, C3A2001_1.Power_Off ); |
| when C3A2001_1.Tripped | C3A2001_1.Failed => null; |
| end case; |
| end Flip; |
| |
| procedure Trip ( The_Breaker : in out Basic_Breaker ) is |
| begin |
| TCTouch.Touch( 'e' ); --------------------------------------------- e |
| C3A2001_1.Set( The_Breaker, C3A2001_1.Tripped ); |
| end Trip; |
| |
| procedure Reset( The_Breaker : in out Basic_Breaker ) is |
| begin |
| TCTouch.Touch( 'f' ); --------------------------------------------- f |
| case Status_Of( The_Breaker ) is |
| when C3A2001_1.Power_Off | C3A2001_1.Tripped => |
| C3A2001_1.Set( The_Breaker, C3A2001_1.Power_On ); |
| when C3A2001_1.Power_On | C3A2001_1.Failed => null; |
| end case; |
| end Reset; |
| |
| end C3A2001_2; |
| |
| ---------------------------------------------------------------------------- |
| |
| with C3A2001_1,C3A2001_2; |
| package C3A2001_3 is |
| use type C3A2001_1.Status; |
| |
| type Ground_Fault is new C3A2001_2.Basic_Breaker with private; |
| |
| function Construct( Voltage : C3A2001_2.Voltages; |
| Amperage : C3A2001_2.Amps ) |
| return Ground_Fault; |
| |
| procedure Set_Trip( The_Breaker : in out Ground_Fault; |
| Capacitance : in Integer ); |
| |
| private |
| type Ground_Fault is new C3A2001_2.Basic_Breaker with record |
| Capacitance : Integer; |
| end record; |
| end C3A2001_3; |
| |
| ---------------------------------------------------------------------------- |
| |
| with TCTouch; |
| package body C3A2001_3 is |
| |
| function Construct( Voltage : C3A2001_2.Voltages; |
| Amperage : C3A2001_2.Amps ) |
| return Ground_Fault is |
| begin |
| TCTouch.Touch( 'g' ); --------------------------------------------- g |
| return ( C3A2001_2.Construct( Voltage, Amperage ) |
| with Capacitance => 0 ); |
| end Construct; |
| |
| |
| procedure Set_Trip( The_Breaker : in out Ground_Fault; |
| Capacitance : in Integer ) is |
| begin |
| TCTouch.Touch( 'h' ); --------------------------------------------- h |
| The_Breaker.Capacitance := Capacitance; |
| end Set_Trip; |
| |
| end C3A2001_3; |
| |
| ---------------------------------------------------------------------------- |
| |
| with C3A2001_1, C3A2001_2; |
| package C3A2001_4 is |
| |
| type Special_Breaker is new C3A2001_2.Basic_Breaker with private; |
| |
| function Construct( Voltage : C3A2001_2.Voltages; |
| Amperage : C3A2001_2.Amps ) |
| return Special_Breaker; |
| |
| procedure Flip ( The_Breaker : in out Special_Breaker ); |
| procedure Trip ( The_Breaker : in out Special_Breaker ); |
| procedure Reset( The_Breaker : in out Special_Breaker ); |
| procedure Fail ( The_Breaker : in out Special_Breaker ); |
| |
| function Status_Of( The_Breaker : Special_Breaker ) return C3A2001_1.Status; |
| function On_Backup( The_Breaker : Special_Breaker ) return Boolean; |
| |
| private |
| type Special_Breaker is new C3A2001_2.Basic_Breaker with record |
| Backup : C3A2001_2.Basic_Breaker; |
| end record; |
| end C3A2001_4; |
| |
| ---------------------------------------------------------------------------- |
| |
| with TCTouch; |
| package body C3A2001_4 is |
| |
| function Construct( Voltage : C3A2001_2.Voltages; |
| Amperage : C3A2001_2.Amps ) |
| return Special_Breaker is |
| It: Special_Breaker; |
| procedure Set_Root( It: in out C3A2001_2.Basic_Breaker ) is |
| begin |
| It := C3A2001_2.Construct( Voltage, Amperage ); |
| end Set_Root; |
| begin |
| TCTouch.Touch( 'i' ); --------------------------------------------- i |
| Set_Root( C3A2001_2.Basic_Breaker( It ) ); |
| Set_Root( It.Backup ); |
| return It; |
| end Construct; |
| |
| function Status_Of( It: C3A2001_1.Breaker ) return C3A2001_1.Status |
| renames C3A2001_1.Status_Of; |
| |
| procedure Flip ( The_Breaker : in out Special_Breaker ) is |
| begin |
| TCTouch.Touch( 'j' ); --------------------------------------------- j |
| case Status_Of( C3A2001_1.Breaker( The_Breaker )) is |
| when C3A2001_1.Power_Off | C3A2001_1.Power_On => |
| C3A2001_2.Flip( C3A2001_2.Basic_Breaker( The_Breaker ) ); |
| when others => |
| C3A2001_2.Flip( The_Breaker.Backup ); |
| end case; |
| end Flip; |
| |
| procedure Trip ( The_Breaker : in out Special_Breaker ) is |
| begin |
| TCTouch.Touch( 'k' ); --------------------------------------------- k |
| case Status_Of( C3A2001_1.Breaker( The_Breaker )) is |
| when C3A2001_1.Power_Off => null; |
| when C3A2001_1.Power_On => |
| C3A2001_2.Reset( The_Breaker.Backup ); |
| C3A2001_2.Trip( C3A2001_2.Basic_Breaker( The_Breaker ) ); |
| when others => |
| C3A2001_2.Trip( The_Breaker.Backup ); |
| end case; |
| end Trip; |
| |
| procedure Reset( The_Breaker : in out Special_Breaker ) is |
| begin |
| TCTouch.Touch( 'l' ); --------------------------------------------- l |
| case Status_Of( C3A2001_1.Breaker( The_Breaker )) is |
| when C3A2001_1.Tripped => |
| C3A2001_2.Reset( C3A2001_2.Basic_Breaker( The_Breaker )); |
| when C3A2001_1.Failed => |
| C3A2001_2.Reset( The_Breaker.Backup ); |
| when C3A2001_1.Power_On | C3A2001_1.Power_Off => |
| null; |
| end case; |
| end Reset; |
| |
| procedure Fail ( The_Breaker : in out Special_Breaker ) is |
| begin |
| TCTouch.Touch( 'm' ); --------------------------------------------- m |
| case Status_Of( C3A2001_1.Breaker( The_Breaker )) is |
| when C3A2001_1.Failed => |
| C3A2001_2.Fail( The_Breaker.Backup ); |
| when others => |
| C3A2001_2.Fail( C3A2001_2.Basic_Breaker( The_Breaker )); |
| C3A2001_2.Reset( The_Breaker.Backup ); |
| end case; |
| end Fail; |
| |
| function Status_Of( The_Breaker : Special_Breaker ) |
| return C3A2001_1.Status is |
| begin |
| TCTouch.Touch( 'n' ); --------------------------------------------- n |
| case Status_Of( C3A2001_1.Breaker( The_Breaker )) is |
| when C3A2001_1.Power_On => return C3A2001_1.Power_On; |
| when C3A2001_1.Power_Off => return C3A2001_1.Power_Off; |
| when others => |
| return C3A2001_2.Status_Of( The_Breaker.Backup ); |
| end case; |
| end Status_Of; |
| |
| function On_Backup( The_Breaker : Special_Breaker ) return Boolean is |
| use C3A2001_2; |
| use type C3A2001_1.Status; |
| begin |
| return Status_Of(Basic_Breaker(The_Breaker)) = C3A2001_1.Tripped |
| or Status_Of(Basic_Breaker(The_Breaker)) = C3A2001_1.Failed; |
| end On_Backup; |
| |
| end C3A2001_4; |
| |
| ---------------------------------------------------------------------------- |
| |
| with C3A2001_1; |
| package C3A2001_5 is |
| |
| type Component is access C3A2001_1.Breaker'Class; |
| |
| type Circuit; |
| type Connection is access Circuit; |
| |
| type Circuit is record |
| The_Gadget : Component; |
| Next : Connection; |
| end record; |
| |
| procedure Flipper( The_Circuit : Connection ); |
| procedure Tripper( The_Circuit : Connection ); |
| procedure Restore( The_Circuit : Connection ); |
| procedure Failure( The_Circuit : Connection ); |
| |
| Short : Connection := null; |
| |
| end C3A2001_5; |
| |
| ---------------------------------------------------------------------------- |
| with Report; |
| with TCTouch; |
| with C3A2001_1, C3A2001_2, C3A2001_3, C3A2001_4; |
| |
| pragma Elaborate_All( Report, TCTouch, |
| C3A2001_1, C3A2001_2, C3A2001_3, C3A2001_4 ); |
| |
| package body C3A2001_5 is |
| |
| function Neww( Breaker: in C3A2001_1.Breaker'Class ) |
| return Component is |
| begin |
| return new C3A2001_1.Breaker'Class'( Breaker ); |
| end Neww; |
| |
| procedure Add( Gadget : in Component; |
| To_Circuit : in out Connection) is |
| begin |
| To_Circuit := new Circuit'(Gadget,To_Circuit); |
| end Add; |
| |
| procedure Flipper( The_Circuit : Connection ) is |
| Probe : Connection := The_Circuit; |
| begin |
| while Probe /= null loop |
| C3A2001_1.Flip( Probe.The_Gadget.all ); |
| Probe := Probe.Next; |
| end loop; |
| end Flipper; |
| |
| procedure Tripper( The_Circuit : Connection ) is |
| Probe : Connection := The_Circuit; |
| begin |
| while Probe /= null loop |
| C3A2001_1.Trip( Probe.The_Gadget.all ); |
| Probe := Probe.Next; |
| end loop; |
| end Tripper; |
| |
| procedure Restore( The_Circuit : Connection ) is |
| Probe : Connection := The_Circuit; |
| begin |
| while Probe /= null loop |
| C3A2001_1.Reset( Probe.The_Gadget.all ); |
| Probe := Probe.Next; |
| end loop; |
| end Restore; |
| |
| procedure Failure( The_Circuit : Connection ) is |
| Probe : Connection := The_Circuit; |
| begin |
| while Probe /= null loop |
| C3A2001_1.Fail( Probe.The_Gadget.all ); |
| Probe := Probe.Next; |
| end loop; |
| end Failure; |
| |
| begin |
| Add( Neww( C3A2001_2.Construct( C3A2001_2.V440, C3A2001_2.A5 )), Short ); |
| Add( Neww( C3A2001_3.Construct( C3A2001_2.V110, C3A2001_2.A1 )), Short ); |
| Add( Neww( C3A2001_4.Construct( C3A2001_2.V12, C3A2001_2.A100 )), Short ); |
| end C3A2001_5; |
| |
| ---------------------------------------------------------------------------- |
| |
| with Report; |
| with TCTouch; |
| with C3A2001_5; |
| procedure C3A2001 is |
| |
| begin -- Main test procedure. |
| |
| Report.Test ("C3A2001", "Check that an abstract type can be declared " & |
| "and used. Check actual subprograms dispatch correctly" ); |
| |
| -- This Validate call must be _after_ the call to Report.Test |
| TCTouch.Validate( "cgcicc", "Adding" ); |
| |
| C3A2001_5.Flipper( C3A2001_5.Short ); |
| TCTouch.Validate( "jbdbdbdb", "Flipping" ); |
| |
| C3A2001_5.Tripper( C3A2001_5.Short ); |
| TCTouch.Validate( "kbfbeee", "Tripping" ); |
| |
| C3A2001_5.Restore( C3A2001_5.Short ); |
| TCTouch.Validate( "lbfbfbfb", "Restoring" ); |
| |
| C3A2001_5.Failure( C3A2001_5.Short ); |
| TCTouch.Validate( "mbafbaa", "Circuits Failing" ); |
| |
| Report.Result; |
| |
| end C3A2001; |
